president karzai's half brother, wally tahlak med ahmad karzai, has been shot dead. with a controversial figure. the taliban has claimed responsibility for the attack. a few months ago, he was interviewed. >> it is quite extraordinary. we were in kandahar for a film in april, and i noted how many layers of security, barb wire, barriers, concrete walls that he had around his compaq and -- of around his compound. i told him he must be in the most heavily secured building in kandahar, and he said, "i have been attacked many times." i said, "who else has attacked khieu?" he said, "is just the taliban."